Kernel method for promoting analogue picture to digita picture

A core method, digital image technology, applied in the direction of standard conversion, etc., can solve problems such as 50HZ image field flicker

Inactive Publication Date: 2005-07-20
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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Problems solved by technology

[0006] The purpose of the present invention is to solve the above problems, provide a core method for upgrading analog images to digital images, solve the problem of 50HZ image fi

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  • Kernel method for promoting analogue picture to digita picture
  • Kernel method for promoting analogue picture to digita picture
  • Kernel method for promoting analogue picture to digita picture

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Embodiment Construction

[0013] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0014] The principle of the signal processing flow of this scheme is as follows: figure 1 As shown, there are mainly two types of digital image formats that need to be processed: ITU656 / 601 format digital YUV signals from video decoders and 24-bit digital YUV / RGB signals from analog-to-digital converters or digital video interfaces. For digital YUV signals in ITU656 / 601 format, since the signals are all interlaced, deinterlacing processing must be performed first, converted into progressive signals and then processed at line frequency and frame rate, while the signal from the analog-to-digital converter or digital video interface The 24-bit digital YUV / RGB signal can be processed directly at line rate and frame rate.

[0015] In order to eliminate the field flicker problem of 50HZ signal, there are mainly 100HZ interlaced pro...

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Abstract

The invention discloses a core method for advancing analog picture to digital picture, directly displaying the front one or many ones of five adjacent continuous picture frames in a 50Hz picture; making interpolation on the other several frames according to motion characteristic value of picture and calculating two adjacent frames to generate a new picture frame and additionally generating one, and thus making the five adjacent continuous picture frames become six adjacent continuous ones. The new algorithm obviously improves the motion characteristic of the picture as compared with that of simply converting 50Hz to 60 Hz. Although it does not thoroughly eliminate the incontinuous problem, the improved motion continuity is already difficult to be observed, therefore for the user, it can be said that the motion is continuous. And on the condition of increasing field frequency, it does not sacrifice the row number, thus overcoming the problem of field scanning lines turning sparse.

Description

【Technical field】: [0001] The invention relates to a core method for upgrading an analog image to a digital image. 【Background technique】: [0002] The TV program in our country is the 50HZ PAL system, which is suitable for the technical level of the 1970s. It has many defects. The progressive processing technology of TV images developed in recent years has eliminated many of the defects. Solved, but the problem of 50HZ field flicker has not been solved well. The current progressive TV has the following methods to deal with the problem of 50HZ field flicker: [0003] 1. Convert to 100HZ for interlaced scanning, which solves the phenomenon of field flicker, but reduces the scanning line in the vertical direction by half compared with the progressive display TV, so that when the large-size display device displays the image in the vertical direction The scan lines are sparse and not fine. [0004] 2. Converted to 60HZ progressive scanning, but only simple frame repetition is ...

Claims

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Application Information

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IPC IPC(8): H04N7/01
Inventor 安慎华游开忻刘永斌吴广生邹春友曾梦螯
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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